There appears to be an issue related to Microsoft domains (Hotmail, MSN, Outlook), causing massive spikes in abuse complaints and unsubscribe rates. This is affecting all ESP’s and email senders, even those with very good data management and subscription management practices. Ematic is investigating this issue to understand what preventative or corrective measures can be put in place, and in certain scenarios we might recommend suppressing all Hotmail, MSN or Outlook domains temporarily.
Mailchimp users have been specifically affected due to their automated “account blocking” system, requiring forced removals of large portions of their perfectly valid subscribers, as well as a block on all future imports to the account. If your account has been blocked and you need help, please contact us.
We will post more information as it becomes available.
